For all its prominence, GDP is only one yardstick of economic performance and it is no guide to social progress. It simply indicates the market value of all goods and services produced in an economy. It takes no account of how income is shared out, or of how it is generated. Few would celebrate a boom in costly divorce cases – but it would be great for GDP.

Well, the attached data shows you how to measure the wellbeing of a country in some interesting other ways too, for each G20 nation.